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<h1 class="topictitle1">Manually Executing Backup</h1>
<div><p>If you want to perform a backup immediately, you can manually perform the backup.</p>
<div class="section"><h4 class="sectiontitle">Context</h4><ul><li>During manual backup, parameters (except <span class="uicontrol"><b><span><strong>Automatic Retry</strong></span></b></span>) defined in the SLA are applied to the manual backup job.</li><li>Copies generated by manual backup are retained for the duration defined in the SLA.<p>If the protection policy selected during manual backup is not defined in the SLA, the generated backup copy is retained permanently. If full backup is not defined in the SLA but selected during manual backup, the copies generated by the manual full backup are retained permanently.</p>
</li><li>If a replication or archive policy has been defined in the SLA, the system will perform replication or archiving once based on the SLA when you perform manual backup.</li></ul>
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<div class="section"><h4 class="sectiontitle">Precautions</h4><ul id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_ul11489174014141"><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li15489104013147">Ensure that the production storage has reserved snapshot space for backup. Reserved snapshot space = Data volume of the source LUN x Percentage of data changes in the backup period. By default, you are advised to reserve 20% of the source LUN capacity for creating snapshots.</li><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li753614613148">An ECS can be backed up only when it is in the following states: <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b1315603085514">Running</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b328618330554">Starting</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b13184103617556">Stopping</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b4161173925518">Stopped</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b42828439551">Reinstalling OS</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b5147647155510">Reinstalling OS failed</strong>, <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b8531750105513">Changing OS</strong>, and <strong id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_b15116105395513">OS Change failed</strong>.</li><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li3646173183411">The default number of concurrent backup jobs on each ProtectAgent is 20. You are advised not to change the number. Otherwise, disk scanning may fail, causing backup failures.</li><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li1469271831514">If ECSs or EVS disks on Huawei scale-out block storage are migrated to SAN storage, you must register SAN storage resources with the <span id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_text62648572215">OceanProtect</span> before backing up ECSs or EVS disks. For details about the registration, see <a href="en-us_topic_0000001839194633.html#EN-US_TOPIC_0000001839194633__li89549137399">3</a> in <a href="en-us_topic_0000001839194633.html">Step 2: Registering Huawei Cloud Stack</a>.</li><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li999215138588">Before the first backup, complete resource scanning so that the latest ECS information can be displayed. For details, see "Managing an Agent Host" in the <i><cite id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_cite390161214149">OceanProtect <span id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_en-us_topic_0000001792502994_ph19170214112011">Appliance 1.5.0-1.6.0</span> ProtectAgent Installation Guide</cite></i><em id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_i9578113116710">ProtectAgent Installation Guide</em>.</li><li id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001792395516_li412153019411">If a snapshot fails to be deleted due to a backup job exception, the system automatically deletes unnecessary snapshots when the next full backup job is performed.</li></ul>
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<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001839194633_en-us_topic_0000001839142377_uicontrol23517341412"><b><span id="EN-US_TOPIC_0000001839274581__en-us_topic_0000001839194633_en-us_topic_0000001839142377_text635183444114"><strong>Protection</strong></span> &gt; Cloud Platforms &gt; Huawei Cloud Stack</b></span>.</span></li><li><span>Click the <span class="uicontrol"><b><span><strong>Project/Resource Set</strong></span></b></span> or <span class="uicontrol"><b><span><strong>Cloud Server</strong></span></b></span> tab based on the type of the data to be backed up.</span><p><div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p>When you select <span class="uicontrol"><b><span><strong>Project/Resource Set</strong></span></b></span> for backup, only ECSs with the same SLA as the <span class="uicontrol"><b><span><strong>Project/Resource Set</strong></span></b></span> are backed up. ECSs with different SLAs from the project/resource set will not be backed up.</p>
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</p></li><li><span>In the row that contains the project/resource set or ECS to be backed up, choose <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Manual Backup</strong></span></b></span>.</span><p><div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul><li>If the project/resource set or ECS to be protected is not displayed, choose <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Resource Scan</strong></span></b></span> in the left pane to update resource information.</li><li>You can select multiple resources to perform manual backup in batches. Select multiple resources and choose <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Manual Backup</strong></span></b></span> above the resources.</li></ul>
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</p></li><li><span>Set the name of the copy generated through manual backup.</span><p><p>If this parameter is left empty, the system sets the name to <strong>backup_</strong><em>Timestamp</em> by default.</p>
</p></li><li><span>Select a protection policy, which can be <span><strong>Full backup</strong></span> or <span><strong>Forever Incremental (Synthetic Full) Backup</strong></span>.</span></li><li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li></ol>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000001839274597.html">Step 7: Performing Backup</a></div>
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